# US 10,871,819 B2 · Timing controller, display driving circuit and control method as well as electronic component thereof, and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,871,819 B2 - Document ID: US10871819B2 - Status: Granted - Kind: B2 - Application number: 16/148,114 - Filed: 2018-10-01 - Published: 2019-04-11 - Granted: 2020-12-22 - Earliest claimed: 2017-10-09 - Assignees: Boe Technology Group Co., Ltd.; Hefei Boe Optoelectronics Technology Co., Ltd. - Applicants: BOE Technology Group Co., Ltd.; Hefei BOE Optoelectronics Technology Co., Ltd. - Inventors: Tao Ma - Web page: https://patentgrep.com/patent/US10871819B2 ## CPC - G06F 1/3287: by switching off individual functional units in the computer system - G06F 1/3265: {Power saving in display device} - G09G 3/3611: {Control of matrices with row and column drivers} - G09G 5/18: Timing circuits for raster scan displays (specially adapted for television H04N {; synchronisation between the display unit and other display units, videodisc player G09G5/12}) - G09G 2310/08: Details of timing specific for flat panels, other than clock recovery - G09G 2330/023: using energy recovery or conservation - G09G 2330/026: Arrangements or methods related to booting a display - Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management - Y02D 30/50: in wire-line communication networks, e.g. low power modes or reduced link rate - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract A timing controller, a display driving circuit and a control method as well as an electronic component thereof, and a display device are provided. The timing controller is for a display device including a display driving circuit, the timing controller including at least one of electronic components; wherein the timing controller includes a first transmitting circuit, configured to transmit a sleep signal to the at least one of electronic components after the end of a display scanning period in each display cycle to enable the electronic component receiving the sleep signal to enter a sleep state; and a second transmitting circuit, configured to transmit a waking-up signal to each of the electronic components in the sleep state before the start of each display cycle to wake up each of the electronic components in the sleep state. ## Claims ### Claim 1 A timing controller for a display device comprising a display driving circuit which is outside a display area and comprises one or more electronic components, wherein the timing controller comprises: a first transmitting circuit, configured to transmit a sleep signal to the electronic components after the end of a display scanning period in each display cycle to enable the electronic components receiving the sleep signal to enter a sleep state; and a second transmitting circuit, configured to transmit a waking-up signal to each of the electronic components in the sleep state before the start of each display cycle to wake up each of the electronic components in the sleep state; wherein the second transmitting circuit comprises: an acquisition sub-circuit, configured to acquire a waking-up time duration; and a transmitting sub-circuit, configured to transmit the waking-up signal to each of the electronic components in the sleep state at a first time in each display cycle, the first time being a time that is the waking-up time duration earlier than a start time of a next display cycle. ### Claim 2 (depends on 1) The timing controller of claim 1, wherein the timing controller has a first signal terminal and a second signal terminal; the first signal terminal is connected to the first transmitting circuit, and is configured to connect each of the electronic components; the second signal terminal is configured to output an enable signal for controlling whether a source driver outputs a data voltage; and the first transmitting circuit comprises: a first output sub-circuit, configured to provide an active level to the first signal terminal at each second time to enable the electronic components connected to the first signal terminal to enter the sleep state, the second time being a time at which the enable signal is transited from the active level to the inactive level. ### Claim 3 (depends on 1) The timing controller of claim 1, wherein the timing controller has a first signal terminal and a third signal terminal; the first signal terminal is connected to the second transmitting circuit, and is configured to connect each of the electronic components; the third signal terminal is configured to output a frame start signal of the display driving circuit; and the second transmitting circuit comprises: a second output sub-circuit, configured to provide an inactive level to the first signal terminal at each third time to wake up each of the electronic components connected to the first signal terminal, the third time being a time that is the waking-up time duration earlier than the time at which the frame start signal is transited from the inactive level to the active level. ### Claim 4 (depends on 1) The timing controller of claim 1, wherein each of the electronic components comprises a waking-up receiving circuit configured to wake up the corresponding electronic components from the sleep state when receiving the waking-up signal. ### Claim 5 (depends on 4) The timing controller of claim 4, wherein at least one of the electronic components is a source driver configured to implement at least one of the following functions: turning off all components except the waking-up receiving circuit when entering the sleep state; and disabling all functions of the waking-up receiving circuit except a function of receiving the waking-up signal when entering the sleep state. ### Claim 6 (depends on 4) The timing controller of claim 4, wherein at least one of the electronic components is a power management component configured to implement at least one of the following functions: stopping output of a voltage that does not need to be output outside the display scanning period when entering the sleep state; and controlling all internal buck converters to be switched to a light-load power saving mode when entering the sleep state. ### Claim 7 (depends on 1) A display driving circuit in a display device, comprising: one or more electronic components, and the timing controller of claim 1. ### Claim 8 (depends on 7) The display driving circuit of claim 7, wherein the electronic components comprises: a sleep circuit, configured to receive a sleep signal transmitted after the end of a display scanning period in each display cycle, and control the corresponding electronic component to enter a sleep state in response to the sleep signal; and a waking-up receiving circuit; configured to receive a waking-up signal transmitted before the start of each display cycle, and wake up the corresponding electronic component from the sleep state in response to the waking-up signal. ### Claim 9 (depends on 7) A display device, comprising the display driving circuit of claim 7. ### Claim 10 An electronic component in a display driving circuit which is outside a display area in a display device, the electronic component comprising: a sleep circuit, configured to receive a sleep signal transmitted after the end of a display scanning period in each display cycle, and control the electronic component to enter a sleep state in response to the sleep signal; and a waking-up receiving circuit, configured to receive a waking-up signal transmitted before the start of each display cycle, and wake up the electronic component from the sleep state in response to the waking-up signal. ### Claim 11 (depends on 10) The electronic component of claim 10, wherein the electronic component is a power management component configured to implement at least one of the following functions: stopping output of a voltage that does not need to be output outside the display scanning period when entering the sleep state; and controlling all internal buck converters to be switched to a light-load power saving mode when entering the sleep state. ### Claim 12 (depends on 10) The electronic component of claim 10, wherein the electronic component is a source driver configured to implement at least one of the following functions: turning off all components except the waking-up receiving circuit when entering the sleep state; and disabling all functions of the waking-up receiving circuit except a function of receiving the waking-up signal when entering the sleep state. ### Claim 13 A control method for a display driving circuit which is outside a display area in a display device and comprises one of one or more electronic components, the method comprising: transmitting a sleep signal to the electronic components after the end of a display scanning period in each display cycle to enable the electronic component receiving the sleep signal to enter a sleep state; and transmitting a waking-up signal to each of the electronic components in the sleep state before the start of each display cycle to wake up each of the electronic components in the sleep state; wherein transmitting the waking-up signal to each of the electronic components in the sleep state before the start of each display cycle to wake up each of the electronic components in the sleep state comprises: acquiring a waking-up time duration; and transmitting the waking-up signal to each of the electronic components in the sleep state at a first time in each display cycle the first time being a time that is the waking-up time duration earlier than a start time of a next display cycle. ### Claim 14 (depends on 13) The method of claim 13, wherein transmitting the sleep signal to the electronic components after the end of the display scanning period in each display cycle to enable the electronic component receiving the sleep signal to enter the sleep state comprises: providing an active level to a first signal terminal at each second time to enable the electronic components connected to the first signal terminal to enter the sleep state, the second time being a time at which the enable signal for controlling whether a source driver outputs data is transited from the active level to the inactive level. ### Claim 15 (depends on 13) The control method of claim 13, wherein transmitting the waking-up signal to each of the electronic components in the sleep state before the start of each display cycle to wake up each of the electronic components in the sleep state comprises: providing an inactive level to the first signal terminal at each third time to wake up the electronic components connected to the first signal terminal, the third time being a time that is the waking-up time duration earlier than the time at which a frame start signal is transited from the inactive level to the active level. ### Claim 16 (depends on 13) The control method of claim 13, wherein each of the electronic components comprises a waking-up receiving circuit, and the method further comprises: waking up the corresponding electronic component from the sleep state when receiving the waking-up signal by the waking-up receiving circuit. ### Claim 17 (depends on 16) The control method of claim 16, wherein at least one of the electronic components is a source driver, and the method further comprises performing at least one of the following steps by the source driver: turning off all components except the waking-up receiving circuit when entering the sleep state; and disabling all functions of the waking-up receiving circuit except a function of receiving the waking-up signal when entering the sleep state. ### Claim 18 (depends on 16) The control method of claim 16, wherein at least one of the electronic components is a power management component, the method further comprises performing at least one of the following steps by the power management component: stopping output of a voltage that does not need to be output outside the display scanning period when entering the sleep state; and controlling all internal buck converters to be switched to a light-load power saving mode when entering the sleep state.